343.The graphs of the lines 5y= 8(x+ 5) and
12(5 – x) = 5yform the boundaries of the
shaded region. The solution set of which of the
following systems of linear inequalities is given
by the shaded region?
a. 5 y8(x+ 5), 12(5 – x) 5 y
b. 5 y 8(x+ 5), 12(5 – x) 5 y
c. 5 y8(x+ 5), 12(5 – x)
5 y
d. 5 y8(x+ 5), 12(5 – x)
5 y
344.The graphs of the lines y= 3xand y= –5 form
the boundaries of the shaded region. The solu-
tion set of which of the following systems of lin-
ear inequalities is given by the shaded region?
a.y 3 x,y –5
b.y 3 x,y – 5
c.y 3 x,y–5
d.y 3 x,y –5
x
y
–10 –8 –6 –4 –2 2 4 6 8 10
–2
–4
–6
–8
–10
10
8
6
4
2
–10 –8 –6 –4 –2^246810 x
–2
–4
–6
–8
–10
–12
–14
10
12
14
8
6
4
2
y
x
- LINEAR EQUATIONS AND INEQUALITIES–